Home / 21,928.14-32,877.63-12,072.06

Finding the Fourth Proportional to 21,928.14, 32,877.63 and 12,072.06

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Solution

The fourth proportional to 21,928.14, 32,877.63 and 12,072.06 is: 18,100.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,928.14 : 32,877.63 = 12,072.06 : x
  2. Step 2: Convert to fraction form
    21,928.14/32,877.63 = 12,072.06/x
  3. Step 3: Cross multiply
    21,928.14x = 32,877.63 × 12,072.06
  4. Step 4: Simplify right side
    21,928.14x = 396,900,722.02
  5. Step 5: Solve for x
    x = 396,900,722.02/21,928.14
  6. Step 6: Final answer
    x = 18,100.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.